Hi,

How can I write this code to place in the workbook of the file, the macro
changes the sheet tab name as per the individual sheet cell A1 which is
changed from the first sheet Index of Stock, I am looking to do this so it
changes instantly when the name is changed and do not need to calculate each
sheet, I have over 100 sheets.

Here is the macro

Private Sub Worksheet_Calculate()
With Me.Range("A1")
If .Value < "" Then
Me.Name = .Value
End If
End With
End Sub

Many thanks

Mark